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WT Staff

Sunday, June 9, 2024
More showers for west interior

June 9, 2024 1031 am EDT

Current Streamflow Situation
Much below seasonal normal conditions in NYS over the last week or more have reversed in trend, streamflows running mostly normal statewide Sunday morning with showers forecast for the west today and tonight. Rainfall of a tenth to quarter inch is possible, even a small amount collected off hundreds of square miles has a measured impact on the waterways. Moderate drought on the interior Finger Lakes region has been turned back to below normal rating overnight. The drought map remains otherwise unchanged from the Saturday report, see the streamflow and drought update for NYS here.

WT USA Flows and Flood Tracker provisional data from the network of USGS streamflow monitors

Seventy flood events are recorded on the USGS network Sunday, up from fifty-four yesterday. WT USA is tracking twelve of these reference flood events through our coverage area in New York, Ohio, Georgia and Louisiana. At the writing of this report, all active flood sites are located in Louisiana.

Watershed Region 7 east border Pearl River is flooding near Bogalusa, currently recorded between eight and nine inches above the channel. Region 1 in the northwest continues flooding in the same pattern as reported yesterday, Caddo Lake and Bayou Bodcau Lake are still out of their basins near Mooringsport and Shreveport, respectively. Bayou Dorcheat overruns the channel near Springhill and downstream Minden. Region 2 Little River is flooding near Rochelle. Region 4 west border river Sabine floods near Logansport, Burkeville, Bon Wier and Ruliff. The east side of Region 4 watershed Calcasieu River is flooding near Glenmora and Oberlin. Twelvemile Bayou is still running above 99th percentile near Dixie with no flood stage to reference. Sabine River is above 99th percentile at Toledo Bend Reservoir near Burkeville with no flood stage documented. For more information on the flood trend in Louisiana, see black tags indicating flood flow volume and gauge height, blue tags for 99th percentile flows, updated daily here.

As many drinking water facilities are supplied from surface water reservoirs, the streamflow situation is pertinent to both drinking water supply and quality. High flows can stir up sediment and cause turbidity in the reservoirs, requiring additional treatments to render the water potable. Low flow volume is linked to warmer temperatures in the reservoir and can be an issue for water quality where HABs are present. WT tracks streamflow trends with an eye to the impacts on drinking water supply and quality in each of the state's watersheds. Check the watershed layer on the map to see the direction of flow and streamflows that may be impacting drinking water today.

USGS Provisional Data Statement
Data are provisional and subject to revision until they have been thoroughly reviewed and received final approval. Current condition data relayed by satellite or other telemetry are automatically screened to not display improbable values until they can be verified.
Provisional data may be inaccurate due to instrument malfunctions or physical changes at the measurement site. Subsequent review based on field inspections and measurements may result in significant revisions to the data.
Data users are cautioned to consider carefully the provisional nature of the information before using it for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences. Information concerning the accuracy and appropriate uses of these data or concerning other hydrologic data may be obtained from the USGS.

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